using SPIDEV on beagle board

I have an SPI slave device connected to MCSPI-4 through the expansion connector on Beagle board. I have programmed the OMAP3 pin mux configuration to get the MCSPI-4 signals on the expansion connector. Now I want to access this spi device from user application using the “spidev” device.
I have enabled support for SPIDEV (CONFIG_SPI_SPIDEV) in the kernel config. Do I need to do anything else to get a “spidev” node created in the /dev filesystem. The directory “/sys/class/spidev” on my target is empty after the kernel boots up.
Thanks & Regards